| Measurement |
Description |
Measurement Unit |
Interpretation |
| Cpu_busy |
The percentage of time for which the server's CPU was engaged in processing requests to the server. |
Percent |
A high value of this measure indicates a heavy load on the server. If this value comes close to 100%, it could indicate a probable delay in the processing of subsequent requests to the server. The detailed diagnosis measures associated with the Background processes measure of the SqlAzuSysProcsTest test will help you identify the processes that are consuming excessive CPU resources. |
| Disk_io_errors |
The rate of errors encountered by the SQL Azure server while reading and writing |
Errors/Seconds |
Disk read/write errors are normally caused by the following reasons:
|
| Disk_reads |
The rate of disk reads performed by the SQL Azure server |
Reads/Seconds |
The value of this measure should be kept at a minimum, as disk reads are expensive operations. Ideally, data reads should be performed from the server cache and not directly from the disk. To ensure effective cache usage, allocate adequate memory to the SQL Azure server. |
| Disk_writes |
The rate of disk writes performed by the SQL Azure server |
Writes/Seconds |
The value of this measure should be kept at a minimum, as disk writes are expensive operations. Ideally, data should be written to the data cache and not directly to the disk. To ensure effective cache usage, allocate adequate memory to the SQL Azure server. |
| Idle |
The percentage of time for which the server was idle. |
Percent |
A low value of this measure is indicative of high CPU utilization. |
| IO_busy |
The percentage of time for which the server was engaged in performing input/output operations |
Percent |
|
| Packet_errors |
The rate at which packet errors occurred. |
Errors/Seconds |
Ideally, this value should be 0. |
| Packets_received |
The rate at which input packets were read by the SQL server. |
Packets/Seconds |
This measure is an indicator of the traffic to the server. |
| Packets_sent |
The rate at which output packets were read by the SQL server |
Packets/Seconds |
This measure is an indicator of traffic from the server. |